Diver Medic Technician course: what it is and where to train (2026)

A Diver Medic Technician (DMT) is trained to recognise and stabilise diving-related injuries, provide advanced first aid, and support a doctor remotely — inside or outside a decompression chamber — until professional medical help arrives. There is no single global DMT qualification. Offshore contractors working to IMCA’s code of practice for offshore diving ask for an IMCA-approved DMT, issued only by a provider on IMCA’s own register (IMCA D020). In the United States, the equivalent route runs through NBDHMT (the National Board of Diving and Hyperbaric Medical Technology), a separate certifying body with its own approved-provider and recertification system. Both cover similar clinical ground, both run on a two-year cycle, and both are worth understanding on their own terms — this guide sets out each route and where you can actually train.

Two systems, not one qualification

IMCA (the International Marine Contractors Association) does not deliver Diver Medic training itself. It approves training providers against its own criteria (IMCA D020) and its code of practice for offshore diving (IMCA D 014) is what drives the requirement: at least one member of a professional dive team, besides the supervisor, trained to give advanced first aid and support a doctor remotely. Only providers on IMCA’s own register can issue an IMCA-recognised DMT certificate.

In the United States, NBDHMT runs a parallel but separate system: NBDHMT-approved courses, taught by NBDHMT-approved instructors, feed into its own DMT certification exam and recertification cycle. There is no confirmed automatic crossover between the two — an IMCA DMT is not automatically an NBDHMT-certified Diver Medic Technician, and vice versa. A third, smaller system exists too: DAN Europe runs its own Diver Medical Technician course, separate from both IMCA and NBDHMT — see our guide comparing IMCA DMT and DAN DMT for that specific distinction.

What the curriculum actually covers

The two main routes overlap heavily on content, even though they sit in different systems. Both cover recognising and stabilising diving injuries (decompression sickness, arterial gas embolism), advanced airway management and oxygen administration, and — under a supervising physician’s remote direction — invasive procedures such as wound closure (sutures and staples), IV access and drug administration, urinary catheterisation, and chest decompression. IMCA’s DMT full course runs around 10 days; NBDHMT-approved courses are commonly built around a 48-hour (5-day) core programme. Both are delivered as a mix of classroom instruction and hands-on practical assessment, and NBDHMT additionally requires a current EMT certification as a prerequisite before the course itself.

The two-year refresher cycle, and how it differs between systems

Both an IMCA DMT and an NBDHMT Diver Medic certificate run on a two-year validity cycle, but the renewal mechanics differ. IMCA’s system uses a shorter refresher course, typically taken within a renewal window before expiry; miss that window and the full initial course has to be repeated. NBDHMT’s system instead asks for 24 hours of additional continuing-education training plus a minimum of 24 hours of ambulance or emergency-room observation over the two-year period, submitted for recertification rather than sat as a single refresher course. Check the current rules with your certifying body directly — recertification requirements are exactly the kind of detail that gets updated.

Where to train under the IMCA route

On the European mainland, IMCA’s own provider register currently lists just three approved Diver Medic providers: BC-opleidingen in the Netherlands, CFO Srl (Centro Formazione Offshore) in Italy, and Trauma Training in Spain — a genuinely thin field for a continent-wide requirement. Most of Europe’s other IMCA-approved providers sit in the United Kingdom, including MediPro, DDRC Healthcare, JFD (JFD Ltd & National Hyperbaric Centre) and the Emergency Services Training Centre; other UK-based diver-medic providers, such as The Diver Medic, also advertise IMCA-accredited courses — check a specific provider’s current listing against IMCA’s own register before booking. In the Gulf, KBA Training Centre (with sites in the UAE, Singapore and Malaysia) and Middle East for Commercial Diving (MECD, UAE) are IMCA-approved. Elsewhere, IMCA’s register also lists providers in South Africa, Australia, Canada, Thailand, Malaysia and Nigeria.

Where to train under the NBDHMT (US) route

In the United States, NBDHMT-approved courses run through commercial-diving schools and dive-medicine training centres such as Divers Institute of Technology (Seattle), the FIU Institute of Environment’s Diving Medical Technician course (linked to the Aquarius programme), and a number of other US-based commercial diving schools and NOAA-linked programmes. This route is the reference credential for divers working in and around the Gulf of Mexico and the wider US commercial-diving industry, in the same way an IMCA DMT is the reference credential on IMCA-guided projects elsewhere.

Which one do you actually need

It depends entirely on who is asking. If you are working, or aiming to work, for a contractor running IMCA-guided offshore projects — the North Sea, the Gulf region and most other international offshore markets — the requirement is for an IMCA-approved DMT from a provider on IMCA’s own register. If you are working within the US commercial-diving industry, NBDHMT is the reference system employers expect. Holding one does not automatically satisfy a requirement written for the other, so read the specific job posting or crewing requirement rather than assume a certificate transfers between systems.

Frequently asked

What does a Diver Medic Technician actually do?

A Diver Medic Technician gives advanced first aid to an injured or ill diver and supports a doctor remotely — including, where trained and equipped, inside a decompression chamber — until professional medical help arrives. It is a required role on professional dive teams working to IMCA’s offshore code of practice.

Is an IMCA DMT the same as an NBDHMT Diver Medic Technician?

No. They are separate qualifications from separate certifying bodies — IMCA (used internationally on IMCA-guided offshore projects) and NBDHMT (the reference system in the United States). There is no confirmed automatic recognition between the two; check which one a specific job or contractor actually requires.

How often do I need to renew my Diver Medic certificate?

Both systems run on a two-year cycle. IMCA’s DMT is renewed with a shorter refresher course inside a renewal window; NBDHMT’s system instead requires 24 hours of continuing education plus 24 hours of ambulance/ER observation over the two years. Confirm the current rules with your certifying body before your certificate lapses.

Where can I train as an IMCA-approved Diver Medic Technician in continental Europe?

As of our August 2026 check, IMCA’s own register lists only three approved providers on the European mainland: BC-opleidingen (Netherlands), CFO Srl (Italy) and Trauma Training (Spain). Most other European providers are based in the United Kingdom — see our guide to the IMCA Diver Medic Technician course in Europe for the fuller picture.

Do I need to already be a diver to take a Diver Medic Technician course?

Yes, for the IMCA route: IMCA D020 requires a recognised offshore diving qualification and a valid diving medical before admission. NBDHMT’s route instead requires a current EMT certification, with a diving background preferred rather than always mandatory — check the specific course’s prerequisites.

Is DAN’s Diver Medical Technician course the same as IMCA’s or NBDHMT’s?

No — it is a third, separate qualification run through DAN Europe’s own training network, distinct from both IMCA’s and NBDHMT’s systems. See our guide comparing IMCA DMT and DAN DMT for how the two differ and which one a specific requirement is actually asking for.